Analysis of Liquid Air Energy Storage System with Organic Rankine Cycle and Heat Regeneration System

Umyshev D.R. Osipov E.V. Kibarin A.A. Korobkov M.S. Petukhov Y.V.
July 2024 Multidisciplinary Digital Publishing Institute (MDPI)

Sustainability (Switzerland)
2024 #16 Issue 13

Liquid air energy storage (LAES) is one of the most promising technologies for power generation and storage, enabling power generation during peak hours. This article presents the results of a study of a new type of LAES, taking into account thermal and electrical loads. The following three variants of the scheme are being considered: with single-stage air compression and the use of compression heat for regasification (Case 1); with single-stage compression and the organic Rankine cycle (Case 2); and with three-stage air compression/expansion and the organic Rankine cycle (Case 3). To analyze the proposed schemes, the Aspen HYSYS v.12 software package was used to compile models of the studied cycles. The analysis shows that round-trip efficiency (RTE) can be as high as 54%. The cost of 1 kg of liquid air is USD 7–8. Moreover, it is shown that the generation of electrical energy largely depends on the operation of the expander plant, followed by the organic Rankine cycle (ORC).

air , compressor , electrical , expander , liquid air energy storage , thermal

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Department of Thermal Engineering, Institute of Energy and Green Technologies, Energo University after Gumarbek Daukeev, Almaty, 050013, Kazakhstan
Mechanical Engineering for Chemical Industry, Institute of Mechanical Engineering for Chemical and Petrochemical Industry, Kazan National Research Technological University, Kazan, 420015, Russian Federation
Engineering Department, Tien Shan Engineering LLP, Timiryazev Str. 42, Almaty, 050013, Kazakhstan

Department of Thermal Engineering
Mechanical Engineering for Chemical Industry
Engineering Department

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